US3144085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power spinner unit for well swivels
Assignee: BBVA USA
•
Filing: 1964-03-09
•
Granted: 1964-08-11
•
Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 Malvern M Hasha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:58
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A DEVICE FOR ROTATING THE SPINDLE OF A SWIVEL INCLUDING: (A) SUPPORT MEANS ADAPTED TO BE CARRIED BY A SWIVEL HAVING A SPINDLE, (B) MOTOR MEANS MOUNTED ON SAID SUPPORT FOR IMPARTING ROTATION TO THE SPINDLE OF THE SWIVEL, (C) GEAR MEANS BETWEEN THE SPINDLE AND SAID MOTOR MEANS, AND (D) MEANS TO MOVE SAID GEAR MEANS TO DISCONNECT SAID MOTOR MEANS FROM THE SPINDLE.
Claim 2
Independent Claim
65 words
A DEVICE FOR ROTATING THE SPINDLE OF A SWIVEL INCLUDING: (A) SUPPORT MEANS ADAPTED TO BE CARRIED BY A SWIVEL HAVING A SPINDLE, (B) MOTOR MEANS MOUNTED ON SAID SUPPORT FOR IMPARTING ROTATION TO THE SPINDLE OF THE SWIVEL, (C) GEAR MEANS BETWEEN THE SPINDLE AND SAID MOTOR MEANS, AND (D) MEANS TO MOVE SAID GEAR MEANS TO DISCONNECT SAID MOTOR MEANS FROM THE SPINDLE.
References Cited (Backward Citations)
US1377575A
Cited
US1884874A
Cited
US2116236A
Cited
US2188589A
Cited
US2633333A
Cited
US2998084A
Cited
US3053330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |